/*
 * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE
 * file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the
 * License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by
 * applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package com.usharp.web.controller;

import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.util.Assert;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import com.usharp.persist.service.ChangesService;
import com.usharp.web.dto.UserDto;

/**
 * @author James Fu (fuyinhai@gmail.com)
 */
@Controller
public class HomeController {

    @Autowired
    private ChangesService changesService;

    @RequestMapping( { "/", "/index.*" })
    public ModelAndView index(Map<String, Object> out) {
        Assert.notNull(changesService, "changesService can not be null.");
        return new ModelAndView("index");
    }

    @RequestMapping
    public void home(UserDto user, Map<String, Object> out) {
        Assert.notNull(out);
        Assert.notNull(user);
        out.put("user", user);
        if (!StringUtils.hasText(user.getUsername())) {
            out.put("message", "username can not be empty.");
        }
    }

    @RequestMapping
    public ModelAndView switchToPage() {
        return new ModelAndView("home/switched");
    }
}
